Screen construction.



EDWARD ASHLEY, 0F BOISE, IDAHO.

FLUME HEADGATE.

Specification of Letters Patent.

Patented Feb. "7, 1911.

Application filed May 14, 1910. Serial No. 561,371.

To all whom it may concern:

Be it known that I, EDWARD AsrILnY, a citizen of the United States,residing at Boise, in the county of Ada and State of Idaho, haveinvented certain new and useful Improvements in Flume Head-Gates, ofwhich the following is a specification. This invention relates toimprovements 1n flume gates and has for one of its objects to provide agate which is simple in construction and easily operated, and which isreadily applied to the mouth of a flume.

Another object is to provide a flume gate of such construction that whenthe gate is slid up to allow the water to pass from the end of the pipeleading into the irrigation ditch the force of the water will not tearthe edge of the canvas sheet.

Another object of the invention is to provide a iiume gate having aninclined mouth and on opposite sides recesses adapted to receiveprojections on the side of the gate whereby the gate is adapted to bemoved up and down on the end of the pipe.

Other objects and advantages will be apparent from the followingdescription, and it will be understood that changes in the specificstructure shown and described may be made within the scope of the claimswithout departing from the spirit of the invention.

In the accompanying drawings are shown several forms of my improvedflume gate and also the fiume. Figure 1 is a side elevation of the monthend of the flume showing my gate applied. Fig. 2 is a side elevation ofa portion of a modification of the flume, Fig. 3 is a front elevation ofthe flume gate, Fig. 1 is a vertical sectional view through the flumegate.

Referring now to the drawings, 1 repre sents a fiume having one endthereof inclined at 2, and on either side of the mouth of said flumethere is formed an elongated recess 3 for the reception of theprojection 1 on the Hume gate 5. The form of gate shown in Figs. 1, 3and 4: comprises the frame formed of a U-shaped strip 5 of suitablematerial preferably metal over which is adapted to be stretched a sheetof canvas or other suitable material 6 and one edge of said strip isadapted to be bent upward at 5 on its outer face and the lower edge ofsaid canvas folded within the groove formed thereby. A Wire 7 is placedin this groove on top of the canvas and the upturned portion is thenbent down to secure the wire and the canvas within the groove.

Across the face of the gate at its lower portion is a strip 8 having theends bent downward at right angles thereto at 9 and secured to the sidefaces of the strip 5. The strip 8 is similarly bent to the strip 5 andthe canvas sheet is brought around under the bottom of the first stripand seated within the groove by means of a wire 11.

The reinforcing strip 8 insures protection to the lower edge of thecanvas strip and prevents the tearing of the same by the rush of thewater when the gate is iightly raised. The incline of the end of thepipe provides for support of the water to relieve the strain from thegate. The canvas being held within the groove formed by the upturnededge of the strip 0 insures the proper securing of the canvas andprevents the same from coming loose when the force of the water isbrought to bear against the gate or the water is turned into the fiume.

From the foregoing it will readily be seen that I have provided a verysimple and eflicient flume gate and one which is readily moved up anddown on the end of the flume to allow more or less water to pass fromthe end of said fiume. Further, the gate is comparatively cheap ofmanufacture.

hat is claimed is:

1. A flume gate comprising a metallic frame, a canvas sheet stretchedover and secured thereto, a reinforcing strip secured across the lowerends of the frame for protecting the edge of the canvas. 2. A flume gatecomprising a metallic frame, a canvas sheet stretched across and securedthereto, projections on the inner face of the frame, and a flumeprovided with re cesses adapted to receive said projections.

3. Thecombination with a fiume having elongated recesses on its sides,of a flume gate comprising a U-shaped frame having a strip of. canvasstretched across and s ecured thereto, a reinforcing strip on the loweredge of said frame, and projections on the frame for engaging in therecesses of the flume.

1. A flume gate comprising a frame having one edge turned up, anddoubled on it self, a canvas sheet stretched across said frame andhaving its marginal edge seated within the space between the upturnedp0rc. BAUER. 'SQREEN CONSTRUCTION. APPLIUATLIOI T FILED JULY 16,1909-983, 342, Patented Feb. 7, 1911.

